What evidence is there that this book is an autobiography? 1

In the foreward, the authr talks about the amount of time it took her to be able to write the book and share her experiences. She did, however, use the memories of a number of people to tell her story. She cites the story is true, that it's her story, her father's story, and her family's story.

You also have evidence on the back 'cause she says "recalls coming of age in Manzanar" 👍